RT5C348B - 4-wire Serial Interface

Product Overview

RICOH electronics devices division

Part number	RT5C348B
Manufacturer	RICOH electronics devices division
File Size	714.67 KB
Description	4-wire Serial Interface
Datasheet	RT5C348B Datasheet
Additional preview pages of the RT5C348B datasheet.

Symbol CE Item Chip enable Input Description The CE pin is used for interfacing with the CPU.

Timekeeping supply voltage ranging from 1.45 to 5.5V Low power consumption Rx5C348A: 0.35µA TYP (0.8µA MAX) at VDD=3V Rx5C348B: 0.55µA TYP (1.0µA MAX) at VDD=3V Only four signal lines (CE, SCLK, SI, and SO) required for connection to the CPU. Maximum clock frequency of 2 MHz (with VDD = 5V) Time counters (counting hours, minutes, and seconds) and calendar counters (counting years, months, days, and weeks) (in BCD format) Interrupt circuit configured to generate interrupt signals (with interrupts.

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Published: Aug 20, 2014 |